3 years ago

I need this graphed: y = -7x + 300

1 answer:

6 0

This is what I got when I Google's it hope this helps

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Debora [2.8K]

Answer:

The answer is A.

Step-by-step explanation:

So we have the two equations:

$3x+y=1\\y+4=5x$

To make a substitution of the second equation into the first equation, we need to isolate the <em>y </em>variable in the second equation. Thus:

$y+4=5x\\y=5x-4$

Now, we can substitute this into the first equation. Therefore:

$3x+y=1\\3x+(5x-4)=1\\3x+5x-4=1$

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3 years ago

stiks02 [169]

$\bf (x-4)^2+(y+1)^2\qquad (3,6)~~ \begin{cases} x = 3\\ y = 6 \end{cases}\implies (3-4)^2+(6+1)^2 \\\\\\ (-1)^2+7^2\implies 1+49\implies 50$

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3 years ago

USPshnik [31]

Answer:

Step-by-step explanation:

2{5x²-15+(-9xy²)}-(2y²+4x-xy²)+3x²

=2{5x²-15-9xy²}-(2y²+4x-xy²)+3x²

=10x²-30-18xy²-2y²-4x+xy²+3x²

=13x²-2y²-17xy²-4x-30

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3 years ago

pentagon [3]

C.the height of a student and the the day of a month a student was born

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3 years ago

Ainat [17]

She can make a total of 30 different outfits, just multiply them all together.

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3 years ago